I'm leaving this here in case someone stumble upon this same issue.
I have a machine where WorkVisual 5.0.10 is working perfectly fine, with 7 KOPs installed inside an specific option profile (love this feature).
I wanted to reproduce this same setup on another machine. Same WorkVisual version, same option profile, same KOPs, same Windows version, and so on. But every time I tried to install a KOP on the new machine, the process seemed to work, but when the green status bar reached 100%, WoV crashed.
When WoV was reopened, that KOPs where listed on Option Package Manager, BUT didn't appear on Option Catalogs, so I couldn't insert that optional elements on the project. I've did this installing the all seven KOPs one by one, and also installing everything the same time.
After some trial and error, I figured that only difference between both setups where the KOPs origin. On first machine they were located on machine itself. On second machine, they were installed from a shared network drive.
So I've copied KOPs locally, uninstalled them from WoV, installed again, and now everything is working fine.
I've performed the same operation with WoV 6.0.9 and that same issue happened.
The strange part is that I did this lots of times on previous WoV versions, and this isn't happened.
Install big software from network drive isn't a recommend practice, but install small stuff like a 50 MB KOP should be perfectly feasible.